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Metric Bolts

A reliable source for Industrial Bolt information and leading Industrial Bolt Companies & Manufacturers.

Using the metric systems for the measuring of industrial bolts as well as metric bolts is becoming increasingly common in industry in the United States. The metric system may also be known as the International System or SI (from the French, Systeme International d’Unites). Read Moreā€¦

Metric Bolts Metric bolts are bolts that are measured and classified according to the metric system that is used as a worldwide standard for measurement. Metric bolts are an essential component for any product or piece of equipment that must be compatible with parts from other continents such as Europe or Asia.
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Leading Manufacturers

Hackensack, NJ  |  800-272-3673

Our company has a reputation for superior products, customer service, and dependability. All our fastener products are built to last, and we know that our customers appreciate our dedication to using the best materials and manufacturing techniques. If you would like to learn more about us, contact us by phone or email, or stop by our website today!

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Ford Fasteners, Inc. $$$

Jefferson, OH  |  888-536-3674

Our company has manufacturing experiences dating back to 1970 and over the years we have grown into an international supplier of bolts.

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Ken Forging $$$

Houston, TX  |  713-868-2351

Delta Fastener Corp. supplies headed fasteners from only quality manufacturers. Our huge, readily available selection includes industrial bolts, nuts, washers, screws, etc. in a wide range of metal types and grades. Check out our online catalog or give us a call today for industrial bolts and more!

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Delta Fastener Corp. $$$

Indianapolis, IN  |  800-428-4686

We design and manufacture the most reliable bolts on the market today. Take a look at our website for fasteners, screws, pins, locknuts, metric fasteners, bolts, clamps, anchors, rivets, threaded rods and more. With our numerous distribution centers, you are bound to find one near you.

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Wurth Industry $$$

Cerritos, CA  |  714-676-8200

Tengco is your source for fasteners. We have over 30 years of experience in providing nuts, bolts, washers, forgings and more for use in a wide range of applications. We work closely with our manufacturers to ensure that all customer specifications are met and our test labs perform extensive testing for tensile, proof load and hardness. For standard or specialized fasteners, think Tengco.

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Tengco $$$

Huntington Beach, CA  |  800-394-6396

Since 1980, we have specialized in designing corrosion- and weather-resistant strong bolts which include industrial bolts, shoulder bolts, metric bolts, aircraft bolts, stainless steel bolts and carriage bolts. We offer commercial parts serving markets with high-quality, cost-effective industrial bolts.

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Ocean State Stainless, Inc. $$$
placeholder image Ford Fasteners, Inc. Ken Forging Delta Fastener Corp. Wurth Industry Tengco Ocean State Stainless, Inc.

There is such a wide range of metric bolts and fasteners that it can be complicated to find the right size for an application. They can be purchased individually or according to a specific design and size requirement. Metric fasteners are indicated by the letter M followed by the inner fastener diameter in millimeters (mm), for example, M5 for a bolt that is five millimeters in diameter. Bolts are typically available in both metric and non-metric designations and non-metric bolts and screws are also measured according to diameter but this is labeled in inches and parts of inches rather than millimeters. Some English bolts also use a separate numbering system that increases in size accordingly.

Commonly used for both structural and non-structural applications, metric bolts, screws and other fastening components are able to be constructed with full threading or partial threading. Construction, equipment joining and securing, automotive engines on cars, motorcycles and larger machines are all examples of common uses of bolts. Due to the wide range of application and intended use for bolts, there are a number of factors to consider when determining the most suitable style and materials for specific purposes. For heavy load and structural uses such as foundation or bridge securing, anchor bolts are used.

If an application requires corrosion resistant materials which are able to be used for even heavy duty purposes, stainless steel bolts are the most suitable choice. Most types of bolts are available in metric sizes, and many bolt manufacturers will stock a comprehensive inventory of metric bolts, nuts and screws in order to be able to meet the wide range of needs in terms of size and capability. Hex bolts are the standard design for the heads of metric bolts, although this can change based on application. Other typical head designs include flange head types, or the more complex eye bolts or loop bolts.

Metric Bolt Informational Video